AmpHtmlResponseSubscriber.php in Accelerated Mobile Pages (AMP) 8
Same filename and directory in other branches
Namespace
Drupal\amp\EventSubscriberFile
src/EventSubscriber/AmpHtmlResponseSubscriber.phpView source
<?php
/**
* @file
* Contains \Drupal\amp\EventSubscriber\AmpHtmlResponseSubscriber.
*/
namespace Drupal\amp\EventSubscriber;
use Drupal\amp\Routing\AmpContext;
use Drupal\amp\Render\AmpHtmlResponseMarkupProcessor;
use Drupal\Core\Render\HtmlResponse;
use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
/**
* Response subscriber to handle amp HTML responses.
*/
class AmpHtmlResponseSubscriber implements EventSubscriberInterface {
/**
* The AMP HTML response markup processor service.
*
* @var \Drupal\amp\Render\AmpHtmlResponseMarkupProcessor
*/
protected $ampHtmlResponseMarkupProcessor;
/**
* The route amp context to determine whether a route is an amp one.
*
* @var \Drupal\amp\Routing\AmpContext
*/
protected $ampContext;
/**
* Constructs an AmpHtmlResponseSubscriber object.
*
* @param \Drupal\amp\Render\AmpHtmlResponseMarkupProcessor $amp_html_response_markup_processor
* The HTML response attachments processor service.
*/
public function __construct(AmpHtmlResponseMarkupProcessor $amp_html_response_markup_processor, AmpContext $amp_context) {
$this->ampHtmlResponseMarkupProcessor = $amp_html_response_markup_processor;
$this->ampContext = $amp_context;
}
/**
* Processes markup for HtmlResponse responses.
*
* @param \Symfony\Component\HttpKernel\Event\FilterResponseEvent $event
* The event to process.
*/
public function onRespond(FilterResponseEvent $event) {
$response = $event
->getResponse();
if (!$response instanceof HtmlResponse) {
return;
}
if ($this->ampContext
->isAmpRoute()) {
$event
->setResponse($this->ampHtmlResponseMarkupProcessor
->processMarkupToAmp($response));
}
}
/**
* {@inheritdoc}
*/
public static function getSubscribedEvents() {
// We want to run this as late as possible, after the HTML has been modified by all the Response listeners
$events[KernelEvents::RESPONSE][] = [
'onRespond',
-1024,
];
return $events;
}
}
Classes
Name![]() |
Description |
---|---|
AmpHtmlResponseSubscriber | Response subscriber to handle amp HTML responses. |